SystemSentry ShareWare Utility allows you to dynamically monitor the memory requirements of your computer. This method of tracking memory usage has many advantages:

The benefits of this include helping you determine which activities lead to memory-related problems, helping you increase the stability of your machine’s configuration, helping you determine which programs have a bug which causes them to not return memory back to your computer when you quit them, letting you know which combination of programs you can safely run simultaneously on your computer, and showing you whether you really need to install more RAM.